<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<style>
p{
    color:green ;
}
div{
    color:pink;
}
</style>
<body>
     <p>男生</p>
     <p>男生</p>
     <p>男生</p>
     <div>女生</div>
     <div>女生</div>
     <div>女生</div>
     标签选择器就是选择相同标签设置统一样式，不能差异化设计
</body>
</html>